This high-end headphone amplifier in the new Pro-Ject DS design allows for above average quality sound playback your headset, which can be usually not reach the extent of the built-in type Headphone Connection of HiFi-amplifiers. The headphone amplifier is simply connected to each amplifier to a free output (Line Out, Rec Out), it can also alterantiv directly to each source (CD player, music server or computer) are connected.